SOLUTION: these circles share a common center, point O. the smallest circle has a radius of 2; the next circle, a radius of 5; and the largest circle, a radius of 9. what fraction of the ar
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Question 481395: these circles share a common center, point O. the smallest circle has a radius of 2; the next circle, a radius of 5; and the largest circle, a radius of 9. what fraction of the area of the largest circle is the area of the shaded region ? Answer by Alan3354(69443) (Show Source):
